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  • 1
    Electronic Resource
    Electronic Resource
    Partial Compensation for Mismatched Uncertain Discrete Systems (2000)
    Springer
    Dynamics and control 10 (2000), S. 47-61 
    Details
    ISSN: 1573-8450
    Keywords: stability ; robust control ; Lyapunov approach ; discrete system
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Control design of nonlinear discrete-time uncertain systems with (possibly fast) uncertain parameters is considered. We study the effect of only partially compensating the uncertainty. The optimal choice of a design parameter, which indicates the amount of compensation, is recommended.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008395928788
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  • 2
    Electronic Resource
    Electronic Resource
    Control of Discrete Fuzzy Systems: Uncertainty and Guaranteed Performance (1998)
    Springer
    Dynamics and control 8 (1998), S. 83-106 
    Details
    ISSN: 1573-8450
    Keywords: fuzzy modeling ; robust control ; stability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Robust control designs for a discrete Takagi and Sugeno (T-S) fuzzy model are proposed. The T-S fuzzy model contains (possibly fast) time-varying uncertainty. First, a switching-type robust control is shown to stabilize the T-S fuzzy model asymptotically. Second, a saturation-type robust control is shown to render the T-S model practically stable. In both designs, only the bound of uncertainty is needed. The effectiveness of proposed designs is analyzed rigorously and illustrated by simulations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008231013911
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  • 3
    Electronic Resource
    Electronic Resource
    Decentralized robust control design for uncertain delay systems (1996)
    Springer
    Journal of optimization theory and applications 89 (1996), S. 311-323 
    Details
    ISSN: 1573-2878
    Keywords: Uncertain systems ; robust control ; Lyapunov minimax approach
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract We consider a class of large-scale uncertain delay systems. The uncertain parameter vector in the system is possibly fast time-varying. It may be nonlinear in the system dynamics. No statistical or fuzzy information of the uncertainty is known. Based on only the possible bound of the uncertain parameter, a decentralized linear robust control is proposed, which renders the system asymptotically stable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02192532
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  • 4
    Electronic Resource
    Electronic Resource
    Isolation and quantitative analysis of hydroxylysine glycosides (1989)
    Springer
    Chromatographia 28 (1989), S. 497-501 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Collagen metabolites ; Amino acid derivatives ; Glycosides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Methods are described for the isolation of galactosyl hydroxylysine and glucosylgalactosyl hydroxylysine from collagen and for the quantitative analysis of these hydroxylysine glycosides. The isolation procedure, based upon gel filtration and preparative ionpaired reversed-phase high-performance liquid chromatography, is simple and rapid in comparison with existing methods, allowing the production of tens of milligrams of each glycoside in a single day. Quantitative analysis of the hydroxylysine glycosides is effected by reversed-phase high-performance liquid chromatography with precolumn derivatization (usingo-phthal-dialdehyde) and fluorescence detection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02261068
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  • 5
    Electronic Resource
    Electronic Resource
    Retention of fullerenes by octadecyl silica. Correlation with NMR spectra at low temperatures (1995)
    Springer
    Chromatographia 40 (1995), S. 507-512 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Fullerenes ; Retention vs NMR spectra ; C18 phases ; Low temperature separations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The temperature effect on the retention of fullerenes in the range 80°C to −70°C in liquid chromatography (LC) has been examined using octadecylsilica stationary phases (ODS). It has been found that the maximum retention temperature lies around −10°C with a highly carbon loaded ODS phase. Solid state CPMAS NMR measurements on the stationary phases indicated that the relaxation time at the 30 ppm methylene signal changes with the temperature and has a minimum relaxation time at the temperature which closely matches the maximum retention temperature observed in chromatography. The interpretation of both NMR spectroscopic and LC chromatographic data are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02290260
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  • 6
    Electronic Resource
    Electronic Resource
    Molecular shape recognition capability of liquid-crystal bonded phases in reversed-phase high performance liquid chromatography (1994)
    Springer
    Chromatographia 38 (1994), S. 295-303 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Liquid crystal phases ; Molecular shape recognition ; Polycyclic aromatic hydrocarbons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The chromatographic retention behaviour of two liquidcrystal bonded phases have been evaluated using polycyclic aromatic hydrocarbons (PAHs) as the probe samples in reversed-phase high performance liquid chromatography (RP-HPLC). The results clearly indicate that these phases have better planarity and shape recognition capabilities than commercially-avaialble polymeric octadecylsilica (ODS) phases whose strong planarity and shape selectivities were found earlier. It can also be concluded from the chromatographic observations that the shape recognition capability of these phases is dependent on both mobile phase composition and column temperature, but that the effect of mobile phase and temperature on the shape selectivity work independently. The retention behaviour can be explained by changes in the phase structure with changes of eluent composition and temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02269771
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of temperature on the mechanism of retention of fullerenes in liquid chromatography using various alkyl bonded stationary phases (1996)
    Springer
    Chromatographia 42 (1996), S. 56-62 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Fullerences ; Alkyl bonded silica phases ; Retention vs. column temperature ; CP-MAS NMR
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The temperature-dependency of the separation of fullerenes in liquid chromatography (LC) has been examined using various alkyl bonded stationary phases. It has been found that a maximum retention temperature exists with long alkyl bonded stationary phases, whereas there is no similar effect with the newly synthesized alkyl bonded phases which have two phenyl groups at the base of the bonded phase. The interpretation of the retention behavior of fullerenes in the low temperature region on alkyl bonded stationary phases is discussed using information obtained by CP-MAS solid-state NMR spectroscopy and LC.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02271056
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  • 8
    Electronic Resource
    Electronic Resource
    Preparation and characterization ofp-tert-butyl-calix[6]arene-bonded silica gel stationary phase for high-performance liquid chromatography (1998)
    Springer
    Chromatographia 48 (1998), S. 245-250 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Calix[6]arene ; Positional isomers ; PAHs ; Nucleosides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary For the first time calix[6]arene has been chemically combined with silica gel via a longer spacer to prepare calix[6]arene-bonded silica gel stationary phase for high-performance liquid chromatography (HPLC). The separation of positional isomers and polycyclic aromatic hydrocarbons on the calix[6]arene-bonded phase was achieved with methanol-water as mobile phase. Some nucleosides were also separated on the bonded phase. The reversed-phase chromatographic performance of the bonded phase was studied. The results showed that the calix[6]arene-bonded phase was highly hydrophobic. A possible separation mechanism has been proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02467678
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  • 9
    Electronic Resource
    Electronic Resource
    Complicated version of a robust control scheme (1994)
    Springer
    Journal of optimization theory and applications 81 (1994), S. 633-641 
    Details
    ISSN: 1573-2878
    Keywords: Uncertain systems ; robust control ; Lyapunov techniques
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract A new robust control design is introduced. The worst cases of controlled system performance and control magnitude are both investigated. Their comparison with early counterparts is also made.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02193104
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  • 10
    Electronic Resource
    Electronic Resource
    Complicated version of a robust control scheme (1995)
    Springer
    Journal of optimization theory and applications 84 (1995), S. 235-235 
    Details
    ISSN: 1573-2878
    Keywords: Uncertain systems ; robust control ; Lyapunov techniques
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The omission of four references from Page 642 of Ref. 1 is corrected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02191744
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